The first six months were devoted to refining the online fundraising technology and services, including secure online donation processing, membership processing, merchandising, event registration, automatic receipt generation, and others. The first clients were signed in June of 1999.

In the following years, Entango has continued to expand its services to include email solicitation and management, international transactions, scheduled repeat giving, and viral philanthropy, among others. As a result, Entango has hundreds of loyal clients nationwide, including many top tier colleges and universities such as Rutgers University, Stevens Institute of Technology, and Babson College, national organizations such as Toys for Tots, SADD, Inc., Legal Momentum, International Museum of Women, numerous chapters of the American Red Cross, United Way, Big Brothers Big Sisters, Starlight Starbright Children's Foundation, and many others.